A-level Chemistry AQA [New Spec] - Concentration & Volume Calculations | A-level Chemistry | OCR, AQA, Edexcel

Concentration & Volume Calculations in a Snap! Unlock the full A-level Chemistry course at http://bit.ly/2H5oLXS created by Ella Buluwela, Chemistry expert at SnapRevise. SnapRevise is the UK’s leading A-level and GCSE revision & exam preparation resource offering comprehensive video courses created by A* tutors. Our courses are designed around the OCR, AQA, SNAB, Edexcel B, WJEC, CIE and IAL exam boards, concisely covering all the important concepts required by each specification. In addition to all the content videos, our courses include hundreds of exam question videos, where we show you how to tackle questions and walk you through step by step how to score full marks. Sign up today and together, let’s make A-level Chemistry a walk in the park! The key points covered in this video include: 1. Solution, Volume and Concentration 2. Concentration and Dilute Solutions The Concept of Concentration How much solute is dissolved in a given volume of solvent. Solution Volume and Concentration n - Number of moles of solute, Unit: mol. c - Concentration of solution, Unit: mol dm^-3. V - Volume of solution, Unit: dm^3, 1000cm^3 = 1 dm^3 Worked Example Calculate the number of moles dissolved in 10dm^3 of a 2 mol dm^-3 solution. Concentrated and Dilute Solutions Concentration: Measure of the amount of solute dissolved in a given volume of solvent. Concentrated - Large amount of solute per dm^3 of solvent. Dilute - Small amount of solute per dm^3 of solvent. Exam Style Question The Periodic Table Summary Concentration is a measure of how much solute is dissolved in a given volume of solvent a. Concentrated solutions contain more solute per dm^3 of solvent b. Dilute concentrations contain a smaller amount of solute per dm^3 of solvent The calculation we use: a. n = c x V